Episodic flaccid weakness

Recurrent episodes of muscle flaccidity, a type of paralysis in which a muscle becomes soft and yields to passive stretching.

Body systems: General

What is Episodic flaccid weakness?

Episodic flaccid weakness is a symptom that people may experience for many reasons. It can be related to infections, chronic conditions, injuries, medication effects, or other health changes. The presence of this symptom alone does not diagnose any condition.

If you have Episodic flaccid weakness that is severe, persistent, or accompanied by other warning signs, contact a qualified healthcare provider.

Possible conditions associated with Episodic flaccid weakness

The following conditions have been associated with Episodic flaccid weakness. Only a health professional can determine the underlying cause.

Thyrotoxic periodic paralysis

Thyrotoxic periodic paralysis is a medical condition that may be associated with various symptoms and signs.

Related symptoms

ConstipationLower limb muscle weaknessOphthalmoparesisPalpitationsTremorWeight loss

When to seek medical care

Seek urgent care if Episodic flaccid weakness is severe, sudden, or occurs with chest pain, difficulty breathing, confusion, severe weakness, or other serious symptoms.